Chloramine Disinfection - June through October 2016

Beginning June 1, 2016, and continuing through October 2016, the MMA’s finished water supplier will be providing MMA customers with drinking water disinfected with chloramines instead of chlorine. The annual change is necessary to maintain the proper bacteriological quality of our drinking water.

Chloramine is more stable in warmer water temperatures than chlorine and is more effective at extending disinfection through the pipelines that distribute water to customers’ homes and businesses. Since chloramine is not as reactive as chlorine with organic materials, it produces substantially lower concentrations of disinfection byproducts (DBPs). This is in line with the introduction of more stringent EPA standards to reduce health risks associated with disinfection byproducts (DBP) in chlorinated water.

Chloramination is a common treatment process in which a small amount of ammonia, diluted in water, is combined with chlorinated water. While most customers will not notice any change in their water, some might notice that the taste and odor of chlorine is reduced. The switch also means that kidney dialysis facilities or home dialysis units may need modifications depending on their method of chlorine removal.  Home dialysis users should consult their physician or dialysis machine manufacturer for instructions.  Fish owners should consult their local pet store for recommended products that will remove chloramine prior to use.

For information about chloramine and more contact our office at 412-372-2677. 

You can also visit the Pennsylvania Department of Environmental Protection (PADEP) Chloramine information page at